taupymo

taupymo is a Python library that provides a Pythonic interface to the TauP travel-time calculator, enabling researchers to compute seismic travel times and ray paths through Earth models. It exposes a high-level API to request travel times for common seismic phases (P, S, PKP, PcP, Pn, Sn, etc.) and to retrieve ray parameters, takeoff angles, and ray paths. Users can supply source depth and epicentral distance, choose a standard Earth model (for example PREM, IASP91, or ak135), or define a custom layered model.

Results can be returned as arrays and integrated into NumPy workflows; units typically in seconds for times and kilometers for distances. The library can produce two-way travel times and single-way times, and it supports vectorized calculations for multiple distances. It may offer optional features such as generating raypaths and plotting utilities.

taupymo is implemented as a Python wrapper around the TauP engine, using a compiled core (C/C++ or Java) and a thin Python interface to minimize overhead and dependencies. It aims to be cross-platform and easily installable via common Python packaging tools.

Since its release, taupymo has been used in seismology education and research for quick travel-time estimates, phase identification, and teaching ray theory. The project is open-source and maintained by a community of contributors, with documentation and tutorials provided on the official repository. See also TauP, Seismology, PREM, IASP91, ak135.